During the joint practices between the Arizona Cardinals and the Indianapolis Colts, rookie wide receiver Marvin Harrison Jr. is showcasing why the Cardinals selected the former Ohio State receiver with the No. 4 overall pick. During the one-on-one portion of the two NFL franchise’s joint practices, Harrison Jr. went head-to-head with 2021 Pro Bowl cornerback Kenny Moore II. In the drill, the rookie wide receiver showcased why he was the top non-quarterback player selected in the 2024 NFL Draft, with a route that shook more completely out of the frame. You can check out Harrison Jr.’s elite ro…